Migrate code from openapi v2 to v3

[vguillot]

Hi guys With the official release of openapi 3.0.0, I tried to convert my swagger 2 to it. I have to admit that it is very heavy. The fact that I have hundreds of route is obviously not helping. I could make some json adaptation about "definitions" "schema" and others naming stuff, but structurally, the fact that the object apiDoc is not used to build openapi 3.0.0 makes me think that I cannot doing it without a full rewrite. Did I think wrong about it? Or did I miss a method or an option to doing it without too much heavy stuff?

[jsdevel]

@vguillot hard to say without looking at your project. i'd suggest limiting your upgrade to a few routes at a time.